65results about "Saw chains" patented technology

In a combination of a sprocket arrangement (128) and a saw chain (16), a sprocket tooth spacing (TI) between consecutive sprocket teeth (40) relates to a drive link spacing between consecutive drive links (30) of the saw chain (16) such that the guide teeth (42) of two or more drive links (30) may enter between a pair of consecutive sprocket teeth (40).

Devices (e.g., chain saws, other tools, etc.) are disclosed with a plurality of links arranged in a chain. A first link comprises a hook that engages a recess of a second link, thereby coupling the links and allowing them to pivot with respect to each other. The links may comprise fins adapted to be positioned in corresponding pockets to inhibit lateral dislocation. A gate may be provided to enable the links to be coupled laterally. One or more closures such as deformable ribs may be provided for closing the gate, and / or a snap-fit such as with a retention ledge may be provided for retention of the fin in the pocket. The links may also have a protruding tab adapted to be positioned in an indented socket of an adjacent link. The links may be tapered. A chain may have one or more spacer links.

Pin shaft holes are formed in the middle of a connecting base portion of the cutting blade at intervals, a depth limiting portion, a cutting concave portion and a cutting concave portion of a cutting portion are sequentially arranged on the upper portion of the connecting base portion from front to back, the cutting portion is of an L-shaped structure, and a transmission protrusion is arranged on the lower portion of the connecting base portion. And the outer side edge of the upper tangent plane exceeds the central line of the thickness of the connecting base part and does not exceed the overall thickness. The high-efficiency saw chain comprises the cutting blades, connecting pieces and pin shafts, the cutting blades are divided into left cutting knives and right cutting knives according to the orientation of outer tangent planes, the left cutting knives and the right cutting knives are arranged in a staggered mode and connected through the connecting pieces and the pin shafts to form the whole annular saw chain, and at the moment, the left cutting knives, the middle guide teeth and the right cutting knives are arranged in the middle. The connecting pieces are located on two sides. According to the utility model, the stress point is centered during cutting, the resistance during cutting is reduced, and the endurance time of the lithium battery and the gasoline engine is effectively prolonged.

Systems and methods for configuring a power tool. One system includes a power tool communication system that includes an external device and a power tool. The external device includes a user interface configured to receive a first selection to enable a feature of a power tool, and receive a second selection of a threshold of a motor characteristic of the power tool. The power tool includes a motor within a housing. The power tool receives the selected feature and the selected threshold from the external device. The power tool includes a sensor configured to monitor the motor characteristic of the motor. The power tool further includes an electronic processor that controls the motor to operate according to the selected feature and adjusts an operating parameter of the motor when the motor characteristic is determined to cross the selected threshold.

An apparatus 1 for processing chain C. The chain comprises links L1, L2, L3 mutually connected by pin portions R. The apparatus comprises a chain holder 3 (to hold the chain) and a pin disengager 5 (operable to remove one of the pin-members to disconnect a portion of the chain from a remainder of the chain). The pin disengager is positioned, or positionable, relative to the chain holder to define a length of the portion of the chain.

There is disclosed method for manufacturing a cutting device comprising the steps of a) providing a base comprising a cutting edge, wherein the base is made of a base material comprising a first element, b) applying a first coating layer comprising a second element on the top surface of the base by a method selected from PVD and electroplating, c) heat treating the base, wherein the step c) is performed at a temperature and for a time period sufficient for the second element to diffuse partly into the base and for the first element to diffuse at least partly into the first coating layer, whereby a gradient of a compound is formed by a reaction of the first element and the second element. Advantages include that wear resistance properties and stay sharp properties are improved, which are particularly suitable for surfaces of cutting devices. Furthermore, the method is environmentally friendly.

The utility model discloses a high-efficiency close-packed tooth saw chain. It includes blades, transmission plates, chain plates for connection, and chain shafts for articulating the blades, transmission plates, and chain plates, which are staggered on the left and right. The spacing between the horizontal line L1 where the bottom end angle of the blade is located and the horizontal line L2 where the top end angle of the blade is located is a first height H1. The average pitch T of the chain is determined by the average value of the spacing between adjacent chain shafts, wherein the ratio between the first height H1 and the average pitch T of the chain is between 0.82 and 0.96. The utility model is suitable for a portable electric chain saw, and the relationship between the blade size and the chain pitch is reasonably optimized, thereby improving the cutting performance of the saw chain, extending the service life of the saw chain, reducing energy consumption, and increasing the endurance time of the chain saw.

The invention belongs to the technical field of saw chains, and particularly relates to a multi-cutter-type arrangement combined type saw chain and a design method.The multi-cutter-type arrangement combined type saw chain comprises a saw chain body, a plurality of cutting elements are arranged on the saw chain body and are arranged according to a set sequence, and the cutting elements are arranged on the saw chain body. And the cutting mechanism compatible with various using objects is combined. According to the multi-cutting-element combined saw chain, the mode that multiple cutting elements are combined is adopted, the advantages of the multiple cutting elements are integrated into one saw chain, the use requirements of various working conditions are met, and the defect that a traditional saw chain cannot give consideration to high sharpness, high applicability, high reliability and the like is overcome.

The utility model provides a chain transmission blade of a chain saw, and belongs to the technical field of saw chain accessories. The transmission piece comprises a transmission piece main body, wherein an oil guide hole structure is arranged on the transmission piece main body, and two ends of the oil guide hole structure can extend towards a blade and a chain piece and can be respectively connected with the blade and the chain piece. The two ends of the transmission piece body extend towards the blade and the chain piece and can be connected with the blade and the chain piece through the oil guide hole structure, the area where lubricating liquid can flow through can be larger, the lubricating liquid covering face is enlarged, the lubricating liquid on the two sides of the transmission piece can be distributed more evenly, and therefore the purpose of reducing abrasion is achieved.

The utility model discloses a saw chain suitable for being matched with a lithium electric saw, which is formed by assembling a single component, the saw chain consists of a plurality of saw teeth which are continuously hinged front and back, the base part of each saw tooth comprises a front side plane and a rear side plane which are opposite to each other, the front part of the front side plane is punched and thinned to form a front sunken area, and a chain shaft hole is punched in the front sunken area; the hole edge of the chain shaft hole is chamfered; the rear part of the rear side plane is punched and thinned to form a rear sunken area, and a cylindrical boss is arranged on the rear side plane where the rear sunken area is located and serves as a chain shaft; when the previous saw tooth is hinged with the next saw tooth, the chain shaft of the previous saw tooth is inserted into the chain shaft hole of the next saw tooth and then riveted, so that the lug boss turnup is filled into the chamfer of the chain shaft hole to form hinging; a concave part is arranged at the lower part between the chain shaft of the saw teeth and the chain shaft hole, and the saw teeth are assembled to form a complete and coherent saw chain transmission tooth structure; and compactness, high efficiency and durability improvement of the saw chain are achieved, and the saw chain is particularly suitable for the requirement of a small lithium electric saw for fine cutting.

The invention relates to a connecting link (10) for a saw chain (8) of a motor-driven work tool (1), having two rivet openings (13, 14). At least one of the rivet openings (13, 14) has a first portion (22) and a second portion (23), wherein the first portion (22) is cylindrical and the second portion (23) is designed as a conical portion (29) in at least one circumferential region. The second portion (23) extends to a lateral surface (17). At least in an imaginary plane (55) which contains the centre axis (15, 16) of the rivet opening (13, 14) and extends perpendicularly to the longitudinal centre axis (19), the second portion (23) has, on the side of the rivet opening (13, 14) which is close to the underside (51), a thickened portion (24) in relation to a completely circumferential conical surface. A saw chain (8) comprises a connecting link (10).

The invention belongs to the technical field of saw chains, and particularly relates to a high-efficiency saw chain which is formed by riveting a left cutting tooth chain sheet, a right cutting tooth chain sheet, a connecting sheet and a transmission sheet with a transmission function through a chain shaft, and the saw line width A is determined by upper knife edges of the left cutting tooth chain sheet and the right cutting tooth chain sheet and ranges from 4.85 mm to 5.65 mm; the maximum height C is determined from the bottommost end of the transmission piece with the transmission function to the highest part of the left cutting tooth chain piece and the highest part of the right cutting tooth chain piece, and the maximum height C = C1 + C2 = 12.75-13.45 mm; the average pitch T is determined according to the hole pitch T1 of the transmission pieces with the transmission function and the hole pitch T2 of the connecting pieces, the left cutting tooth chain piece and the right cutting tooth chain piece, T = (T1 + T2) / 2 = 7.35 mm, S = A * C * T = 451-550 mm < 3 >, and the saw blade has high saw blade cutting efficiency, is light in weight and saves labor in operation.

A diamond tool bit includes a steel weld pad configured to be coupled with a drive link of a cutting chain. The diamond tool bit further comprises a diamond layer combined with the steel welding pad, wherein the diamond layer extends at the edge part of the steel welding pad along the height of the steel welding pad. Other embodiments are also disclosed and claimed.

A method for manufacturing a link (8) for an abrasive cutting chain comprises: providing a metal blank having an outer profile of the link (8) and a rivet hole (14); and providing a sealing material ring (15) by injection molding a sealing material around at least one rivet hole (14). The method further comprises providing a transfer channel (16) in the metal blank adjacent to the at least one rivet hole (14). The sealing material flows through the transfer channel (16) into at least one cavity portion of an injection mold assembly to form the at least one sealing material ring (15). A grinding chain link comprises at least one rivet hole (14). The transfer channel (16) is provided adjacent to the rivet hole (14).

Improved chainsaws, components for chainsaws, methods of manufacturing the chainsaws and components, and methods of using the chainsaws and components are disclosed. In some embodiments, the chainsaw has a sawbar and a plurality of links, where a first link has a hook that engages a recess in a second link, thereby coupling the first link and the second link together and allowing the links to articulate without disengaging. The sawbar can have a rail, and the links can have a groove, so that the links straddle and rest on the rail. The rail can have a protrusion, and the link groove can have a notch that receives the protrusion, so that the protrusion prevents the links from misaligning with each other. The links can have conical or pyramidal cutting teeth. The chain can be bidirectional. Robotic and automated operation of saws and other tools is also disclosed.

The invention discloses a saw chain for an electric saw, which comprises a first blade, a second blade and a driving blade, the first blade is arranged on a first connecting piece, the second blade is arranged on a second connecting piece, the first blade and the second blade are arranged on different connecting piece groups, the driving blade is arranged on a transmission piece, and the driving blade is arranged on the transmission piece. The first blade, the driving blade and the second blade are sequentially distributed on the chain saw; a tool bit of the first blade gradually inclines towards the direction close to the transmission sheet from one side far away from the rotating axis of the first connecting sheet relative to the transmission sheet to one side close to the rotating axis of the first connecting sheet relative to the transmission sheet; the tool bit of the second blade gradually inclines towards the direction close to the transmission piece from the side away from the axis, rotating relative to the transmission piece, of the second connecting piece to the side close to the axis, rotating relative to the transmission piece, of the second connecting piece. The cutting efficiency is high, cuttings are not prone to accumulation, and cutting of soft metal can be achieved.

The invention provides a technology capable of suppressing shaking of a cutting object relative to a saw chain during cutting work and suppressing retention of cuttings between the saw chain and the cutting object during cutting work. The saw chain includes a plurality of drive links, a plurality of side links, and a plurality of coupling pins. At least a part of the side chain links are provided with cutting parts, and the cutting parts comprise cutting teeth and limiting teeth. The width of the staggered teeth of the saw chain ranges from 4.3 mm to 4.6 mm. The depth of the saw chain ranges from 0.1 mm to 0.3 mm. The chain pitch of the saw chain is in the range of 8.0 mm to 8.5 mm.

The present disclosure belongs to the technical field of gardening tools, in particular relates to a 3 / 16 pitch micro saw chain of a motor driven saw chain. The 3 / 16 pitch micro saw chain of the motor driven saw chain is composed of a left gear cutting chain sheet, a right gear cutting chain sheet, a side connecting sheet and a transmission sheet with a transmission function by riveting a chain shaft. The width A of a saw line is confirmed by an upper cutter point of the left gear cutting chain sheet / the right gear cutting chain sheet and the width A of the saw line is 4.4-5.4mm. A maximum height C is confirmed from the bottommost end of the transmission sheet with the transmission function top the highest part of the left gear cutting chain sheet / the right gear cutting chain sheet, and the maximum height C is Cl+C2=8.5-9.8mm. An average pitch is confirmed by a hole pitch T1 of the transmission sheet with the transmission function and a hole pitch T2 of the side connecting sheet and the left gear cutting chain sheet / the right gear cutting chain sheet, and T= (Tl+T2) / 2=4.76mm, S=A∗C∗T=178-252mm3. The present disclosure has higher cutting efficiency for the saw sheet, light weight, easy operation, no easy shaking during use, more smooth section, stronger stability and safety, and lower power consumption.

The present invention relates to a novel cutting apparatus capable of effectively cutting a material via movement in at least two different directions. In certain embodiments, the cutting apparatus comprises cutting elements with at least two cutting surfaces. Such cutting elements are capable of effectively penetrating a material when moved with an applied force in the direction that at least one cutting surface is oriented. Such cutting elements may be configured for use with a variety of cutting apparatus, including but not limited to chainsaws.

The invention discloses a sawtooth chain, an electric saw and a cutting device, and relates to the technical field of lumbering and obstacle clearance, and the sawtooth chain comprises a chain assembly and a sawtooth assembly nested on the peripheral surface of the chain assembly; the chain assembly comprises a plurality of groups of chain links, and the plurality of groups of chain links are annularly arranged and can be hung on the chain wheel in a rolling manner; the sawtooth assembly comprises a steel wire strip, a sawtooth piece used for cutting an object and a connecting piece used for connecting the steel wire strip and the chain assembly. The steel wire strip is divided into a plurality of cutting units with the same length through the sawtooth pieces, the sawtooth pieces adopt flat teeth, and each cutting unit comprises an assembling area and a chip removal area, so that the distance between every two adjacent sawtooth pieces is increased, chips generated in the cutting process can be rapidly removed, and the problem that due to the existing sawtooth hook shape design, the cutting efficiency is high is solved. And the saw chain is easily hooked by bamboo fibers, so that the saw chain is stuck or separated.

An industrial driver apparatus includes a forklift hydraulic motor, a drive shaft adapter, a hydraulic pump, and a frame. The forklift hydraulic motor includes a housing and a drive shaft. The drive shaft adapter is coupled to the drive shaft of the forklift hydraulic motor and adapts the drive shaft of the forklift hydraulic motor to a dimension of a threaded component being driven by the forklift hydraulic motor. The hydraulic pump pressurizes a hydraulic fluid used to drive the forklift hydraulic motor. The frame is coupled to a housing of the forklift hydraulic motor and prevents the forklift hydraulic motor from rotating while the drive shaft rotates the threaded component.

A cutting member for a saw chain and a method for the production thereof, the cutting member comprising a support part made of a steel alloy and a cutting part welded to the support part along a welding connection made of a high speed steel. The steel alloy of the support part is a tool steel that has the following composition (specifications in % by weight):Carbon (C)0.4 to 1.0Silicon (Si)up to 1.8Manganese (Mn)up to 0.6Chromium (Cr)4.5 to 12Molybdenum (Mo)up to 3Vanadium (V)up to 2Iron (Fe) and accompany elements caused by melting and impurities as the remainder. The steel alloy of the support part in a quenched and tempered state has a hardness of more than 600 HV and a tensile strength of more than 2000 MPa as a result of curing at a suitable temperature above the austenitizing temperature of the high speed steel.

A chainsaw cutting link (21) comprises: a base portion (29) provided with two rivets holes (20a, 20b) for pivotal inter- connection with adjacent links (13), and a cutting tooth (35) extending away from the base portion (29), wherein the cutting tooth (35) comprises a top plate (41) and a side plate (43) defining an angle to form an L-shaped cutting edge (45, 47, 49) facing in a cutting direction (B). The top plate (41) comprises a top plate cutting edge (45) which is sharper than at least a portion (53) of the side plate cutting edge (47).

A chainsaw cutting link (1, 1') is disclosed. The chainsaw cutting link (1, 1') is configured to move along a movement direction (md) in a cutting plane (Pc) during cutting. The cutting link (1, 1') comprises a base portion (2) and a side plate (5) and a top plate (4) defining an angle to form an L-shaped cutting tooth (3) extending away from the base portion (2). The top plate (4) comprises a top side (6') facing in a direction (d1) away from the base portion (2), a lower side (7') facing in a direction (d2) towards the base portion (2), and a lateral side (9') connecting the top side (6') and the lower side (7'). The lateral side (9') comprises a lateral side surface (9) being angled with an angle (a1) relative to the cutting plane (Pc) as measured in a plane (P1) perpendicular to the movement direction (md). The present disclosure further relates to saw chain (30) and a chainsaw (40).

A land preparation tool includes a cutting surface having a blade and a mounting interface opposite the cutting surface. The mounting interface of the land preparation tool is configured to detachably connect to a tool holder having a top surface, an end surface, a mounting surface opposite the end surface, and opposing first and second side surfaces extending between the end surface and the mounting surface. The mounting surface has an apex extending downwardly from the top surface and first and second mounting faces. The first mounting face extends inwardly from the first side surface toward the apex and the second mounting face extends inwardly from the second side surface toward the apex.

The utility model discloses a high-abrasion-resistance saw chain which comprises a first transmission piece and a second transmission piece. The first transmission pieces and the second transmission pieces are alternately arranged, and the first transmission pieces and the second transmission pieces are connected in a riveted mode; the outer surface of the first transmission piece and the outer surface of the second transmission piece are coated with anti-corrosion coatings. The first transmission piece and the second transmission piece are made of alloy steel materials. By using a high-strength material, the wear resistance of the saw chain is remarkably improved, and the service life is prolonged; and the cutting teeth made of tungsten carbide are adopted, so that the hardness and sharpness are improved, the cutting resistance is reduced, and the efficiency is improved.

A drive link for a sawchain is disclosed wherein the drive link has a top side which faces away from an opening plane defined by the respective axes of the rivet openings and extends at least partially at the drive link apex. A functional surface and a contact surface spaced apart from the functional surface are provided on the top side of the drive link. The functional surface is formed on the drive link apex and includes a section of the top side in which the top side is at a maximum spacing from the opening plane. The functional surface of the top side of the drive link is point-symmetric to a symmetry point with respect to the contact surface in the viewing direction toward the drive link plane.